Prospect Park Alliance's restoration of Endale Arch comprises years of research, dedicated work and a number of exciting discoveries as layers of time were stripped back. One of the first architectural elements constructed in Prospect Park more than 150 years ago, the arch was envisioned by park creators Frederick Law Olmsted and Calvert Vaux as a transporting entrance from the urban hubbub of Grand Army Plaza to the pastoral tranquility of the mile-long Long Meadow.